code: def mem_stack(data):
      data = pd.melt(data, "index", var_name="Type", value_name="Usage")
      areas = hv.Dataset(data).to(hv.Area, "index", "Usage")
      return hv.Area.stack(areas.overlay()).relabel("Memory")
  
file_path: holoviews/examples/gallery/apps/bokeh/streaming_psutil.py
imports: import psutil
  import panel
  import pandas
  import holoviews
  from holoviews import dim, opts
label_desc: Use image node_id 3 for calling a global function with example usage: mem_stack(data) and returns: hv